-- Largest Analysis Examining Use of CAR T-cell Therapy Across Race and Ethnicity --

-- Black or African American Patients Experienced Longer Time from Diagnosis to Infusion Compared to White Patients, Possibly Impacting Overall and Complete Response Rates; More Study Warranted --

-- Clinical Trials of Yescarta in the U.S. and Real-World Use from CIBMTR Registry Show Consistent Participation of Approximately 5% Black or African American Patients --

SANTA MONICA, Calif.--(BUSINESS WIRE)-- Kite, a Gilead Company (Nasdaq: GILD), today announced findings from a safety and efficacy retrospective analysis by race and ethnicity from the ongoing post-authorization study of Yescarta® (axicabtagene ciloleucel) in adult patients with relapsed or refractory large B-cell lymphoma (LBCL). In the largest real-world analysis of its kind evaluating data from the CIBMTR® (Center for International Blood and Marrow Transplant Research®), overall outcomes including overall survival (OS) and progression-free survival (PFS) rates were consistent with Yescarta in the real-world setting, regardless of race and ethnicity. The findings were presented today in an oral session during the 2022 American Society of Clinical Oncology (ASCO) Annual Meeting (Abstract #7571).

The incidence of diffuse LBCL in the U.S. is 4.8 per 100,000 per year in non-Hispanic Black or African Americans and 7.1 per 100,000 per year in non-Hispanic Whites. Clinical trials of Yescarta in the U.S. have enrolled an average of 6% Black or African American patients, consistent with the roughly 5% of patients in the real-world CIBMTR registry.* Further research is ongoing to investigate whether or not there is under-representation by race and ethnicity in both clinical trials and the real-world usage of CAR T-cell therapy.

“The investigation of CAR T-cell therapy outcomes by race and ethnicity is important to the continued understanding of the impact of these innovative therapies, and an area in which there is a significant deficit in clinical trials and real-world studies published to date,” said Frederick L. Locke, MD, lead author and Co-Leader of the Immuno-Oncology Program at Moffitt Cancer Center, Tampa, Florida. “The results of this analysis are encouraging in that axi-cel was safe and effective regardless of race or ethnicity, and also warrant further investigation to understand the lower rate of response among Black or African American patients and the potential role of factors such as higher disease burden, disease biology and, importantly, differential access to care.”

A total of 1,389 adult patients with LBCL treated with Yescarta in the commercial setting in the U.S. from October 2017 to August 2020 were included in the analysis. Race and ethnicity (Hispanic or Latino vs. not Hispanic or Latino) were self-reported and included: White (81%); Black or African American (5%); Asian (6%); American Indian or Alaska Native